Brownfield factory: buying occupancy quickly and inheriting decisions somebody else made

Speed is the product being purchased

The advantage is concentrated in time. An existing building usually has electricity, water, drainage and access already established, an industrial planning consent in place, and a structure that does not need constructing, which can compress an occupancy timeline from years to months. For a business responding to a contract win, a capacity shortfall or a customer requirement to produce in a particular region, that difference can be the whole commercial case. The corresponding discipline is that speed must not be allowed to shorten the investigation, because the things you fail to find remain yours afterwards.

Due diligence is the entire exercise

The survey list is long and each item has bitten somebody: structural condition and residual capacity of the frame and floor, roof and cladding condition, presence of asbestos or other hazardous materials in the fabric, ground and groundwater contamination, drainage layout and condition with any interceptors, incoming services capacity as opposed to the size of the pipe, existing fire strategy documentation and its assumptions, any hazardous area assessment and equipment register, and whether the planning consent covers what you intend to do. Missing documentation is itself a finding, and it should move the price.

Contamination is where liability quietly transfers

Previously used industrial land can carry contamination from operations that ceased decades ago, and the regimes governing who must deal with it vary by jurisdiction but frequently follow the land rather than the polluter once the original operator is gone. Phased investigation — desk study of historic use, then intrusive sampling where that study raises questions — is the standard approach and should be complete before contracts are signed. Where something is found, the negotiation covers price, remediation responsibility, indemnities and insurance, and it is a specialist legal and environmental discussion rather than a commercial one.

The building will argue with your process

Column positions, bay widths, clear height under the lowest obstruction, floor loading capacity, dock arrangement, yard depth and the position of existing services were all chosen for someone else's operation. Some of those can be changed at cost; the column grid and the frame generally cannot. Before committing, lay your process onto the actual building rather than a rectangle of the same area, including material flow, maintenance access and the space around equipment. Buildings that look generously sized often lose a great deal to obstruction, and that discovery belongs before the offer, not after.

Comparing the routes honestly

Neither an existing building nor a new one is superior in general; they suit different situations. Taking over existing premises rewards speed, tolerates process flexibility and demands investigative rigour. Building new rewards process specificity and long horizons and demands patience with approvals. Many manufacturers use both across a network. Whichever route is chosen, structural assessment, hazardous material surveys, contamination investigation and any modification design are carried out by qualified specialists under the regimes applying locally, and this page is a framing of the commercial question rather than technical guidance. The comparison that helps is not which route is superior but which risk your organisation is equipped to carry: construction and approval exposure, or the exposure of what a survey has not yet found.

Frequently asked questions

How far should contamination investigation go before we commit?

Far enough that the remaining uncertainty is one you can price. Convention is to begin with a desk-based study of the site's history and setting, and to follow it with sampling wherever that study identifies a plausible source or pathway. Stopping at the desk study on a site with a long industrial history leaves an open-ended exposure. Where the seller resists intrusive investigation, that resistance is information, and it should be reflected in either the price or the contractual protection you require.

Does taking over a building mean inheriting its previous fire and safety documentation?

You inherit the building and the obligations that come with occupying it, but the documentation describes the previous occupier's use, not yours. Treat it as evidence about the building rather than as a position you can rely on. Anything you change about materials, storage, occupancy or internal subdivision may take the building outside what those documents assume, which requires competent reassessment. Establish who holds the original records and get them transferred, because reconstructing them later is slow and expensive.

Is refurbishing an old industrial building ever more expensive than building new?

It can be, particularly where the frame or floor cannot support the intended use, where hazardous materials are extensive in the fabric, where services need complete replacement, or where the work must happen around partial occupancy. The pattern to watch for is a series of individually reasonable improvements that together approach the cost of a new structure while still leaving the constraints of the old one. Setting a walk-away figure early, based on the survey results, keeps that from creeping up unnoticed.